The aim of this paper was to explore the effect of music therapy on mother – child attachment development with mothers at risk residing together in children's care homes. The research was conducted in form of case study consisting of ten sessions led by a student of music therapy. The research was done on three mothers and their children involved in a series of musical therapy experiences. Having in mind the importance of close physical contact between mother and infant elements of dance movement therapy were used. Sessions took place once to twice a week. Before and after the last session mothers filled in the Parenting Sense of Competence – PSOC (Gibaud, Wallston i Wandersman, 1978) and Maternal Postnatal Attachment Scale – MPAS (van Bussel, Spitz i Demyttenaere 2010). After the treatment had ended all of the mothers had songs, musical games and development movements they could continue using for the purpose of bonding with their children. The collected quantitative and qualitative data have shown a positive effect of music therapy on mother – child attachment development with mothers at risk. The scale data almost always showed a positive shift and the mothers have declared a stronger connection to their children, especially during the time of singing ''their'' songs. They have also stated that the musical treatment had helped them feel more competent as a parent.